Efficiency of thermoelectric recuperators of the exhaust gas energy of internal combustion engines

Анатычук, Л. И.; Kuz, R. V.; Rozver, Yu.Yu.

doi:10.1063/1.4731607

Cited by 6 publications

(7 citation statements)

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“…Придушення теплового сліду від енергоустановки транспортного засобу (наприклад, ДВЗ) зазвичай спрямовано на зниження температури відпрацьованих газів (ВГ). Такого зниження можна досягти різними способами, основні з яких: розбавлення потоку ВГ атмосферним повітрям, розпилення в потоці ВГ спеціальних рідин, що мають високу теплоємність і в процесі випаровування дозволяють знижувати температуру ВГ, та використання термоелектричних генераторів [4], які додатково уможливлюють генерування електроенергії безпосередньо на борту наземної транспортної машини.…”

Section: вступunclassified

Reducing the level of infrared radiation of a ground vehicle during its movement

Afonin,

Avramenko,

Levterov

et al. 2024

Bulletin of KhNAHU

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Problem. Reducing the visibility of a ground vehicle makes it possible to increase its survivability and provide conditions for the performance of assigned tasks. The development of approaches to the analysis of the conditions for the formation of a heat trace from the engine of the ground vehicle is an extremely important scientific and practical task. Goal. The purpose of the work was to carry out comparative numerical modelling to assess the effectiveness of diluting the EG flow of the engine of the ground vehicle with atmospheric air to reduce their temperature. Methodology. Using the method of finite volumes, a comparative numerical experiment was conducted in a three-dimensional stationary setup. The possibility of sucking atmospheric air with the standard nozzle of the ejector was quantified. Results. The study shows that the addition of atmospheric air can effectively reduce the temperature of exhaust gases. The use of a regular ejection system allows to reduce the temperature of exhaust gases by 10-12 degrees without additional energy consumption. Originality. Using the method of a comparative numerical experiment, the effectiveness of adding atmospheric air to the exhaust gases of a diesel engine in order to suppress the heat trace was evaluated. Practical value. An approach to reducing the temperature of the exhaust gases of the ground vehicle engine is proposed, that allows to decrease its visibility in the infrared radiation spectrum without additional energy consumption.

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Section: вступunclassified

Reducing the level of infrared radiation of a ground vehicle during its movement

Afonin,

Avramenko,

Levterov

et al. 2024

Bulletin of KhNAHU

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“…This phenomenon is referred to as the thermoelectric effect. 15,16 Electrical energy can be converted into electrical force using a thermoelectric generator, which is a solid-state device. Numerous pairs of N and P are sandwiched between two ceramic plates that are excellent heat conductors and possess a low electrical resistance.…”

Section: Introductionmentioning

confidence: 99%

“…Using temperature differences between two metal wires linked to each other to provide cooling is another cutting‐edge technology used around the world. This phenomenon is referred to as the thermoelectric effect 15,16 . Electrical energy can be converted into electrical force using a thermoelectric generator, which is a solid‐state device.…”

Section: Introductionmentioning

confidence: 99%

Machine learning‐based metaheuristic optimization of hydrogen energy plant with solid oxide fuel cell

Mansir

Hani

Sinaga

et al. 2022

Intl J of Energy Research

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Summary The purpose of this research is to examine the performance assessment and multi‐objective optimization of a multigeneration energy systems that include power generation, cooling, and freshwater. The system under investigation is composed of a fuel cell, a multi‐effect desalination plant, an absorption chiller, a steam generator, and a thermoelectric generator. To do this, we employed thermodynamic modeling of the intended cycle to determine the optimal design points employing a genetic algorithm. Machine learning techniques have been utilized to lower the computing time and cost associated with optimization. The optimization of this cycle revealed that it is possible to increase the exergy and energy effectiveness by up to 72 and 79%, respectively while lowering the total cost rate to $ 9.23 per hour.

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“…Semiconductor thermoelectric sensors of heat flux [9][10][11][12][13][14][15], which combine miniaturization, high sensitivity, stability of parameters in a wide range of operating temperatures and compatibility with modern electronic recording equipment, are known to be promising for testing human local heat release. The use of such sensors allows achieving high locality and accuracy of thermometric measurements.…”

Section: Thermoelectric Device With Electronic Control Unit For Diagnmentioning

confidence: 99%

“…[1][2][3]. However, in this paper, heat fluxes were measured using gradient semiconductor thermoelectric sensors that have a narrow specific application in medical and biological thermometric measurements [4][5][6][7][8].The peculiarity of such sensors is that they do not require compensation heaters, which can distort the temperature and heat flux distributions of the biological objects under study.Semiconductor thermoelectric sensors of heat flux [9][10][11][12][13][14][15], which combine miniaturization, high sensitivity, stability of parameters in a wide range of operating temperatures and compatibility with modern electronic recording equipment, are known to be promising for testing human local heat release. The use of such sensors allows achieving high locality and accuracy of thermometric measurements.…”

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confidence: 99%

Thermoelectric device with electronic control unit for diagnostics of inflammatory processes in the human organism

et al. 2017

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There are a large number of high-efficiency optical devices based on thermocouple sensors for radiometric measurements, e.g. Angstrom compensating pyrheliometers, etc. [1][2][3]. However, in this paper, heat fluxes were measured using gradient semiconductor thermoelectric sensors that have a narrow specific application in medical and biological thermometric measurements [4][5][6][7][8].The peculiarity of such sensors is that they do not require compensation heaters, which can distort the temperature and heat flux distributions of the biological objects under study.Semiconductor thermoelectric sensors of heat flux [9][10][11][12][13][14][15], which combine miniaturization, high sensitivity, stability of parameters in a wide range of operating temperatures and compatibility with modern electronic recording equipment, are known to be promising for testing human local heat release. The use of such sensors allows achieving high locality and accuracy of thermometric measurements. This, in its turn, makes it possible to obtain information on the characteristics of the objects under study and analyze them in detail in order to identify the inflammatory processes of the human body at an early stage.An important factor in the study of human body heat fluxes with the help of such sensors is the accuracy and speed of recording the signals of thermoelectric sensors. Previously developed thermoelectric devices with electronic control units [16][17][18][19][20] have certain drawbacks, the main one being the dependence of the thermoelectric sensor readings on the ambient temperature.

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Efficiency of thermoelectric recuperators of the exhaust gas energy of internal combustion engines

Cited by 6 publications

References 0 publications

Reducing the level of infrared radiation of a ground vehicle during its movement

Reducing the level of infrared radiation of a ground vehicle during its movement

Machine learning‐based metaheuristic optimization of hydrogen energy plant with solid oxide fuel cell

Thermoelectric device with electronic control unit for diagnostics of inflammatory processes in the human organism

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